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The phar:// stream wrapper is available since PHP 5.3.0. See Phar stream wrapper for detailed description.

**Wrapper Summary**
Attribute	Supported
Restricted by allow_url_fopen	No
Restricted by allow_url_include	No
Allows Reading	Yes
Allows Writing	Yes
Allows Appending	No
Allows Simultaneous Reading and Writing	Yes
Supports stat()	Yes
Supports unlink()	Yes
Supports rename()	Yes
Supports mkdir()	Yes
Supports rmdir()	Yes

phar://